Here are a few I found from an article on seekingalpha's website
The following are the players in this field excluding universities, private firms and companies not traded on U.S. Exchanges. More information will be added as it becomes available and by those who wish to participate in this investment theme.
Applied Nanotech Holdings (APNT) recently @$0.21 EPS $-0.02 52 week high $0.36, 52 week low $0.19 shares outstanding (MIL) 107,473,000. Market Cap (MIL) 22,569,330. ROA -165.10 price/cash flow (TTM) -11.60 operating margin -63.30 Profit Margin - 67.90 Average daily volume (MIL) 0.097 2008 revenue $4M 2008 net income $-2.7M 2008 EPS $-0.o3 2008 EBITA $-4.6M 2007 revenue $4M 2007 net income $-4.3M 2007 EPS $-0.04 2007 EBITA $-4.3M. The company has two reportable revenue streams in addition to the primary holding company: Applied Nanotech, INC. Which develops proprietary carbon nanotube and related technologies. Electronic Bi